Remove accent (replace special character) from the text Input: "Cámara" Desired Output: "Camara"

If you just need to remove some un printable characters alone you can use clean() function,

if you want to replace you need to  create some logic, very high level example is given below.

To replace the special characters with some other encoding, try using substitute() function.

a!localVariables(
local!splitted_text: a!forEach(
items: enumerate(len(ri!text)),
expression: charat(ri!text, fv!index)
),
local!splCharsReplacedArray_txt: a!forEach(
items: local!splitted_text,
expression: if(
isnull(clean(fv!item)),
/* you can maintain a constant for all chars u want to replace*/
displayvalue(fv!item, { "á", "é", "í" }, { "a", "e", "i" }, ""),
fv!item
)
),
joinarray(local!splCharsReplacedArray_txt, "")
)